1 /* $NetBSD: if_iwi.c,v 1.105 2018/01/16 07:05:24 maxv Exp $ */ 2 /* $OpenBSD: if_iwi.c,v 1.111 2010/11/15 19:11:57 damien Exp $ */ 3 4 /*- 5 * Copyright (c) 2004-2008 6 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 #include <sys/cdefs.h> 22 __KERNEL_RCSID(0, "$NetBSD: if_iwi.c,v 1.105 2018/01/16 07:05:24 maxv Exp $"); 23 24 /*- 25 * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver 26 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm 27 */ 28 29 30 #include <sys/param.h> 31 #include <sys/sockio.h> 32 #include <sys/sysctl.h> 33 #include <sys/mbuf.h> 34 #include <sys/kernel.h> 35 #include <sys/socket.h> 36 #include <sys/systm.h> 37 #include <sys/malloc.h> 38 #include <sys/conf.h> 39 #include <sys/kauth.h> 40 #include <sys/proc.h> 41 #include <sys/cprng.h> 42 43 #include <sys/bus.h> 44 #include <machine/endian.h> 45 #include <sys/intr.h> 46 47 #include <dev/firmload.h> 48 49 #include <dev/pci/pcireg.h> 50 #include <dev/pci/pcivar.h> 51 #include <dev/pci/pcidevs.h> 52 53 #include <net/bpf.h> 54 #include <net/if.h> 55 #include <net/if_arp.h> 56 #include <net/if_dl.h> 57 #include <net/if_ether.h> 58 #include <net/if_media.h> 59 #include <net/if_types.h> 60 61 #include <net80211/ieee80211_var.h> 62 #include <net80211/ieee80211_radiotap.h> 63 64 #include <netinet/in.h> 65 #include <netinet/in_systm.h> 66 #include <netinet/in_var.h> 67 #include <netinet/ip.h> 68 69 #include <dev/pci/if_iwireg.h> 70 #include <dev/pci/if_iwivar.h> 71 72 #ifdef IWI_DEBUG 73 #define DPRINTF(x) if (iwi_debug > 0) printf x 74 #define DPRINTFN(n, x) if (iwi_debug >= (n)) printf x 75 int iwi_debug = 4; 76 #else 77 #define DPRINTF(x) 78 #define DPRINTFN(n, x) 79 #endif 80 81 /* Permit loading the Intel firmware */ 82 static int iwi_accept_eula; 83 84 static int iwi_match(device_t, cfdata_t, void *); 85 static void iwi_attach(device_t, device_t, void *); 86 static int iwi_detach(device_t, int); 87 88 static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, 89 int); 90 static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 91 static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 92 static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, 93 int, bus_size_t, bus_size_t); 94 static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 95 static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 96 static struct mbuf * 97 iwi_alloc_rx_buf(struct iwi_softc *sc); 98 static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, 99 int); 100 static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 101 static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 102 103 static struct ieee80211_node *iwi_node_alloc(struct ieee80211_node_table *); 104 static void iwi_node_free(struct ieee80211_node *); 105 106 static int iwi_cvtrate(int); 107 static int iwi_media_change(struct ifnet *); 108 static void iwi_media_status(struct ifnet *, struct ifmediareq *); 109 static int iwi_wme_update(struct ieee80211com *); 110 static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); 111 static int iwi_newstate(struct ieee80211com *, enum ieee80211_state, int); 112 static void iwi_fix_channel(struct ieee80211com *, struct mbuf *); 113 static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, 114 struct iwi_frame *); 115 static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); 116 static void iwi_cmd_intr(struct iwi_softc *); 117 static void iwi_rx_intr(struct iwi_softc *); 118 static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); 119 static int iwi_intr(void *); 120 static void iwi_softintr(void *); 121 static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t, int); 122 static void iwi_write_ibssnode(struct iwi_softc *, const struct iwi_node *); 123 static int iwi_tx_start(struct ifnet *, struct mbuf *, struct ieee80211_node *, 124 int); 125 static void iwi_start(struct ifnet *); 126 static void iwi_watchdog(struct ifnet *); 127 128 static int iwi_alloc_unr(struct iwi_softc *); 129 static void iwi_free_unr(struct iwi_softc *, int); 130 131 static int iwi_get_table0(struct iwi_softc *, uint32_t *); 132 133 static int iwi_ioctl(struct ifnet *, u_long, void *); 134 static void iwi_stop_master(struct iwi_softc *); 135 static int iwi_reset(struct iwi_softc *); 136 static int iwi_load_ucode(struct iwi_softc *, void *, int); 137 static int iwi_load_firmware(struct iwi_softc *, void *, int); 138 static int iwi_cache_firmware(struct iwi_softc *); 139 static void iwi_free_firmware(struct iwi_softc *); 140 static int iwi_config(struct iwi_softc *); 141 static int iwi_set_chan(struct iwi_softc *, struct ieee80211_channel *); 142 static int iwi_scan(struct iwi_softc *); 143 static int iwi_auth_and_assoc(struct iwi_softc *); 144 static int iwi_init(struct ifnet *); 145 static void iwi_stop(struct ifnet *, int); 146 static int iwi_getrfkill(struct iwi_softc *); 147 static void iwi_led_set(struct iwi_softc *, uint32_t, int); 148 static void iwi_sysctlattach(struct iwi_softc *); 149 150 /* 151 * Supported rates for 802.11a/b/g modes (in 500Kbps unit). 152 */ 153 static const struct ieee80211_rateset iwi_rateset_11a = 154 { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; 155 156 static const struct ieee80211_rateset iwi_rateset_11b = 157 { 4, { 2, 4, 11, 22 } }; 158 159 static const struct ieee80211_rateset iwi_rateset_11g = 160 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; 161 162 static inline uint8_t 163 MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 164 { 165 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 166 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 167 } 168 169 static inline uint32_t 170 MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 171 { 172 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 173 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 174 } 175 176 CFATTACH_DECL_NEW(iwi, sizeof (struct iwi_softc), iwi_match, iwi_attach, 177 iwi_detach, NULL); 178 179 static int 180 iwi_match(device_t parent, cfdata_t match, void *aux) 181 { 182 struct pci_attach_args *pa = aux; 183 184 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) 185 return 0; 186 187 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2200BG || 188 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2225BG || 189 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 190 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) 191 return 1; 192 193 return 0; 194 } 195 196 /* Base Address Register */ 197 #define IWI_PCI_BAR0 0x10 198 199 static void 200 iwi_attach(device_t parent, device_t self, void *aux) 201 { 202 struct iwi_softc *sc = device_private(self); 203 struct ieee80211com *ic = &sc->sc_ic; 204 struct ifnet *ifp = &sc->sc_if; 205 struct pci_attach_args *pa = aux; 206 const char *intrstr; 207 bus_space_tag_t memt; 208 bus_space_handle_t memh; 209 pci_intr_handle_t ih; 210 pcireg_t data; 211 uint16_t val; 212 int error, i; 213 char intrbuf[PCI_INTRSTR_LEN]; 214 215 sc->sc_dev = self; 216 sc->sc_pct = pa->pa_pc; 217 sc->sc_pcitag = pa->pa_tag; 218 219 pci_aprint_devinfo(pa, NULL); 220 221 /* clear unit numbers allocated to IBSS */ 222 sc->sc_unr = 0; 223 224 /* power up chip */ 225 if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, 226 NULL)) && error != EOPNOTSUPP) { 227 aprint_error_dev(self, "cannot activate %d\n", error); 228 return; 229 } 230 231 /* clear device specific PCI configuration register 0x41 */ 232 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 233 data &= ~0x0000ff00; 234 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 235 236 237 /* enable bus-mastering */ 238 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 239 data |= PCI_COMMAND_MASTER_ENABLE; 240 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); 241 242 /* map the register window */ 243 error = pci_mapreg_map(pa, IWI_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 244 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &sc->sc_sz); 245 if (error != 0) { 246 aprint_error_dev(self, "could not map memory space\n"); 247 return; 248 } 249 250 sc->sc_st = memt; 251 sc->sc_sh = memh; 252 sc->sc_dmat = pa->pa_dmat; 253 254 /* disable interrupts */ 255 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 256 257 sc->sc_soft_ih = softint_establish(SOFTINT_NET, iwi_softintr, sc); 258 if (sc->sc_soft_ih == NULL) { 259 aprint_error_dev(self, "could not establish softint\n"); 260 return; 261 } 262 263 if (pci_intr_map(pa, &ih) != 0) { 264 softint_disestablish(sc->sc_soft_ih); 265 sc->sc_soft_ih = NULL; 266 aprint_error_dev(self, "could not map interrupt\n"); 267 return; 268 } 269 270 intrstr = pci_intr_string(sc->sc_pct, ih, intrbuf, sizeof(intrbuf)); 271 sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, iwi_intr, sc); 272 if (sc->sc_ih == NULL) { 273 softint_disestablish(sc->sc_soft_ih); 274 sc->sc_soft_ih = NULL; 275 aprint_error_dev(self, "could not establish interrupt"); 276 if (intrstr != NULL) 277 aprint_error(" at %s", intrstr); 278 aprint_error("\n"); 279 return; 280 } 281 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 282 283 if (iwi_reset(sc) != 0) { 284 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 285 softint_disestablish(sc->sc_soft_ih); 286 sc->sc_soft_ih = NULL; 287 aprint_error_dev(self, "could not reset adapter\n"); 288 return; 289 } 290 291 ic->ic_ifp = ifp; 292 ic->ic_wme.wme_update = iwi_wme_update; 293 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 294 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 295 ic->ic_state = IEEE80211_S_INIT; 296 297 sc->sc_fwname = "ipw2200-bss.fw"; 298 299 /* set device capabilities */ 300 ic->ic_caps = 301 IEEE80211_C_IBSS | /* IBSS mode supported */ 302 IEEE80211_C_MONITOR | /* monitor mode supported */ 303 IEEE80211_C_TXPMGT | /* tx power management */ 304 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 305 IEEE80211_C_SHSLOT | /* short slot time supported */ 306 IEEE80211_C_WPA | /* 802.11i */ 307 IEEE80211_C_WME; /* 802.11e */ 308 309 /* read MAC address from EEPROM */ 310 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 311 ic->ic_myaddr[0] = val & 0xff; 312 ic->ic_myaddr[1] = val >> 8; 313 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 314 ic->ic_myaddr[2] = val & 0xff; 315 ic->ic_myaddr[3] = val >> 8; 316 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 317 ic->ic_myaddr[4] = val & 0xff; 318 ic->ic_myaddr[5] = val >> 8; 319 320 aprint_verbose_dev(self, "802.11 address %s\n", 321 ether_sprintf(ic->ic_myaddr)); 322 323 /* read the NIC type from EEPROM */ 324 val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE); 325 sc->nictype = val & 0xff; 326 327 DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype)); 328 329 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 330 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) { 331 /* set supported .11a rates (2915ABG only) */ 332 ic->ic_sup_rates[IEEE80211_MODE_11A] = iwi_rateset_11a; 333 334 /* set supported .11a channels */ 335 for (i = 36; i <= 64; i += 4) { 336 ic->ic_channels[i].ic_freq = 337 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 338 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 339 } 340 for (i = 149; i <= 165; i += 4) { 341 ic->ic_channels[i].ic_freq = 342 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 343 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 344 } 345 } 346 347 /* set supported .11b and .11g rates */ 348 ic->ic_sup_rates[IEEE80211_MODE_11B] = iwi_rateset_11b; 349 ic->ic_sup_rates[IEEE80211_MODE_11G] = iwi_rateset_11g; 350 351 /* set supported .11b and .11g channels (1 through 14) */ 352 for (i = 1; i <= 14; i++) { 353 ic->ic_channels[i].ic_freq = 354 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 355 ic->ic_channels[i].ic_flags = 356 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 357 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 358 } 359 360 ifp->if_softc = sc; 361 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 362 ifp->if_init = iwi_init; 363 ifp->if_stop = iwi_stop; 364 ifp->if_ioctl = iwi_ioctl; 365 ifp->if_start = iwi_start; 366 ifp->if_watchdog = iwi_watchdog; 367 IFQ_SET_READY(&ifp->if_snd); 368 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 369 370 error = if_initialize(ifp); 371 if (error != 0) { 372 ifp->if_softc = NULL; /* For iwi_detach() */ 373 aprint_error_dev(sc->sc_dev, "if_initialize failed(%d)\n", 374 error); 375 goto fail; 376 } 377 ieee80211_ifattach(ic); 378 /* Use common softint-based if_input */ 379 ifp->if_percpuq = if_percpuq_create(ifp); 380 if_register(ifp); 381 382 /* override default methods */ 383 ic->ic_node_alloc = iwi_node_alloc; 384 sc->sc_node_free = ic->ic_node_free; 385 ic->ic_node_free = iwi_node_free; 386 /* override state transition machine */ 387 sc->sc_newstate = ic->ic_newstate; 388 ic->ic_newstate = iwi_newstate; 389 ieee80211_media_init(ic, iwi_media_change, iwi_media_status); 390 391 /* 392 * Allocate rings. 393 */ 394 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 395 aprint_error_dev(self, "could not allocate command ring\n"); 396 goto fail; 397 } 398 399 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 400 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 401 if (error != 0) { 402 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 403 goto fail; 404 } 405 406 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 407 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 408 if (error != 0) { 409 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 410 goto fail; 411 } 412 413 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 414 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 415 if (error != 0) { 416 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 417 goto fail; 418 } 419 420 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 421 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 422 if (error != 0) { 423 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 424 goto fail; 425 } 426 427 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 428 aprint_error_dev(self, "could not allocate Rx ring\n"); 429 goto fail; 430 } 431 432 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 433 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 434 435 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 436 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 437 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 438 439 sc->sc_txtap_len = sizeof sc->sc_txtapu; 440 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 441 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 442 443 iwi_sysctlattach(sc); 444 445 if (pmf_device_register(self, NULL, NULL)) 446 pmf_class_network_register(self, ifp); 447 else 448 aprint_error_dev(self, "couldn't establish power handler\n"); 449 450 ieee80211_announce(ic); 451 452 return; 453 454 fail: iwi_detach(self, 0); 455 } 456 457 static int 458 iwi_detach(device_t self, int flags) 459 { 460 struct iwi_softc *sc = device_private(self); 461 struct ifnet *ifp = &sc->sc_if; 462 463 if (ifp->if_softc != NULL) { 464 pmf_device_deregister(self); 465 iwi_stop(ifp, 1); 466 iwi_free_firmware(sc); 467 ieee80211_ifdetach(&sc->sc_ic); 468 if_detach(ifp); 469 } 470 471 iwi_free_cmd_ring(sc, &sc->cmdq); 472 iwi_free_tx_ring(sc, &sc->txq[0]); 473 iwi_free_tx_ring(sc, &sc->txq[1]); 474 iwi_free_tx_ring(sc, &sc->txq[2]); 475 iwi_free_tx_ring(sc, &sc->txq[3]); 476 iwi_free_rx_ring(sc, &sc->rxq); 477 478 if (sc->sc_ih != NULL) { 479 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 480 sc->sc_ih = NULL; 481 } 482 483 if (sc->sc_soft_ih != NULL) { 484 softint_disestablish(sc->sc_soft_ih); 485 sc->sc_soft_ih = NULL; 486 } 487 488 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 489 490 return 0; 491 } 492 493 static int 494 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 495 int count) 496 { 497 int error, nsegs; 498 499 ring->count = count; 500 ring->queued = 0; 501 ring->cur = ring->next = 0; 502 503 /* 504 * Allocate and map command ring 505 */ 506 error = bus_dmamap_create(sc->sc_dmat, 507 IWI_CMD_DESC_SIZE * count, 1, 508 IWI_CMD_DESC_SIZE * count, 0, 509 BUS_DMA_NOWAIT, &ring->desc_map); 510 if (error != 0) { 511 aprint_error_dev(sc->sc_dev, 512 "could not create command ring DMA map\n"); 513 ring->desc_map = NULL; 514 goto fail; 515 } 516 517 error = bus_dmamem_alloc(sc->sc_dmat, 518 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 519 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 520 if (error != 0) { 521 aprint_error_dev(sc->sc_dev, 522 "could not allocate command ring DMA memory\n"); 523 goto fail; 524 } 525 526 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 527 IWI_CMD_DESC_SIZE * count, 528 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 529 if (error != 0) { 530 aprint_error_dev(sc->sc_dev, 531 "could not map command ring DMA memory\n"); 532 goto fail; 533 } 534 535 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 536 IWI_CMD_DESC_SIZE * count, NULL, 537 BUS_DMA_NOWAIT); 538 if (error != 0) { 539 aprint_error_dev(sc->sc_dev, 540 "could not load command ring DMA map\n"); 541 goto fail; 542 } 543 544 memset(sc->cmdq.desc, 0, 545 IWI_CMD_DESC_SIZE * count); 546 547 return 0; 548 549 fail: return error; 550 } 551 552 static void 553 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 554 { 555 int i; 556 557 for (i = ring->next; i != ring->cur;) { 558 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 559 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 560 BUS_DMASYNC_POSTWRITE); 561 562 wakeup(&ring->desc[i]); 563 i = (i + 1) % ring->count; 564 } 565 566 ring->queued = 0; 567 ring->cur = ring->next = 0; 568 } 569 570 static void 571 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 572 { 573 if (ring->desc_map != NULL) { 574 if (ring->desc != NULL) { 575 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 576 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 577 IWI_CMD_DESC_SIZE * ring->count); 578 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 579 } 580 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 581 } 582 } 583 584 static int 585 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 586 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 587 { 588 int i, error, nsegs; 589 590 ring->count = 0; 591 ring->queued = 0; 592 ring->cur = ring->next = 0; 593 ring->csr_ridx = csr_ridx; 594 ring->csr_widx = csr_widx; 595 596 /* 597 * Allocate and map Tx ring 598 */ 599 error = bus_dmamap_create(sc->sc_dmat, 600 IWI_TX_DESC_SIZE * count, 1, 601 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 602 &ring->desc_map); 603 if (error != 0) { 604 aprint_error_dev(sc->sc_dev, 605 "could not create tx ring DMA map\n"); 606 ring->desc_map = NULL; 607 goto fail; 608 } 609 610 error = bus_dmamem_alloc(sc->sc_dmat, 611 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 612 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 613 if (error != 0) { 614 aprint_error_dev(sc->sc_dev, 615 "could not allocate tx ring DMA memory\n"); 616 goto fail; 617 } 618 619 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 620 IWI_TX_DESC_SIZE * count, 621 (void **)&ring->desc, BUS_DMA_NOWAIT); 622 if (error != 0) { 623 aprint_error_dev(sc->sc_dev, 624 "could not map tx ring DMA memory\n"); 625 goto fail; 626 } 627 628 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 629 IWI_TX_DESC_SIZE * count, NULL, 630 BUS_DMA_NOWAIT); 631 if (error != 0) { 632 aprint_error_dev(sc->sc_dev, 633 "could not load tx ring DMA map\n"); 634 goto fail; 635 } 636 637 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 638 639 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 640 M_NOWAIT | M_ZERO); 641 if (ring->data == NULL) { 642 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 643 error = ENOMEM; 644 goto fail; 645 } 646 ring->count = count; 647 648 /* 649 * Allocate Tx buffers DMA maps 650 */ 651 for (i = 0; i < count; i++) { 652 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, 653 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); 654 if (error != 0) { 655 aprint_error_dev(sc->sc_dev, 656 "could not create tx buf DMA map"); 657 ring->data[i].map = NULL; 658 goto fail; 659 } 660 } 661 return 0; 662 663 fail: return error; 664 } 665 666 static void 667 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 668 { 669 struct iwi_tx_data *data; 670 int i; 671 672 for (i = 0; i < ring->count; i++) { 673 data = &ring->data[i]; 674 675 if (data->m != NULL) { 676 m_freem(data->m); 677 data->m = NULL; 678 } 679 680 if (data->map != NULL) { 681 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 682 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 683 bus_dmamap_unload(sc->sc_dmat, data->map); 684 } 685 686 if (data->ni != NULL) { 687 ieee80211_free_node(data->ni); 688 data->ni = NULL; 689 } 690 } 691 692 ring->queued = 0; 693 ring->cur = ring->next = 0; 694 } 695 696 static void 697 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 698 { 699 int i; 700 struct iwi_tx_data *data; 701 702 if (ring->desc_map != NULL) { 703 if (ring->desc != NULL) { 704 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 705 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 706 IWI_TX_DESC_SIZE * ring->count); 707 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 708 } 709 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 710 } 711 712 for (i = 0; i < ring->count; i++) { 713 data = &ring->data[i]; 714 715 if (data->m != NULL) { 716 m_freem(data->m); 717 } 718 719 if (data->map != NULL) { 720 bus_dmamap_unload(sc->sc_dmat, data->map); 721 bus_dmamap_destroy(sc->sc_dmat, data->map); 722 } 723 } 724 } 725 726 static int 727 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 728 { 729 int i, error; 730 731 ring->count = 0; 732 ring->cur = 0; 733 734 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 735 M_NOWAIT | M_ZERO); 736 if (ring->data == NULL) { 737 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 738 error = ENOMEM; 739 goto fail; 740 } 741 742 ring->count = count; 743 744 /* 745 * Allocate and map Rx buffers 746 */ 747 for (i = 0; i < count; i++) { 748 749 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 750 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); 751 if (error != 0) { 752 aprint_error_dev(sc->sc_dev, 753 "could not create rx buf DMA map"); 754 ring->data[i].map = NULL; 755 goto fail; 756 } 757 758 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { 759 error = ENOMEM; 760 goto fail; 761 } 762 763 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, 764 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); 765 if (error != 0) { 766 aprint_error_dev(sc->sc_dev, 767 "could not load rx buffer DMA map\n"); 768 goto fail; 769 } 770 771 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, 772 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); 773 } 774 775 return 0; 776 777 fail: return error; 778 } 779 780 static void 781 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 782 { 783 ring->cur = 0; 784 } 785 786 static void 787 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 788 { 789 int i; 790 struct iwi_rx_data *data; 791 792 for (i = 0; i < ring->count; i++) { 793 data = &ring->data[i]; 794 795 if (data->m != NULL) { 796 m_freem(data->m); 797 } 798 799 if (data->map != NULL) { 800 bus_dmamap_unload(sc->sc_dmat, data->map); 801 bus_dmamap_destroy(sc->sc_dmat, data->map); 802 } 803 804 } 805 } 806 807 static struct ieee80211_node * 808 iwi_node_alloc(struct ieee80211_node_table *nt) 809 { 810 struct iwi_node *in; 811 812 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 813 if (in == NULL) 814 return NULL; 815 816 in->in_station = -1; 817 818 return &in->in_node; 819 } 820 821 static int 822 iwi_alloc_unr(struct iwi_softc *sc) 823 { 824 int i; 825 826 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) 827 if ((sc->sc_unr & (1 << i)) == 0) { 828 sc->sc_unr |= 1 << i; 829 return i; 830 } 831 832 return -1; 833 } 834 835 static void 836 iwi_free_unr(struct iwi_softc *sc, int r) 837 { 838 839 sc->sc_unr &= 1 << r; 840 } 841 842 static void 843 iwi_node_free(struct ieee80211_node *ni) 844 { 845 struct ieee80211com *ic = ni->ni_ic; 846 struct iwi_softc *sc = ic->ic_ifp->if_softc; 847 struct iwi_node *in = (struct iwi_node *)ni; 848 849 if (in->in_station != -1) 850 iwi_free_unr(sc, in->in_station); 851 852 sc->sc_node_free(ni); 853 } 854 855 static int 856 iwi_media_change(struct ifnet *ifp) 857 { 858 int error; 859 860 error = ieee80211_media_change(ifp); 861 if (error != ENETRESET) 862 return error; 863 864 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 865 iwi_init(ifp); 866 867 return 0; 868 } 869 870 /* 871 * Convert h/w rate code to IEEE rate code. 872 */ 873 static int 874 iwi_cvtrate(int iwirate) 875 { 876 switch (iwirate) { 877 case IWI_RATE_DS1: return 2; 878 case IWI_RATE_DS2: return 4; 879 case IWI_RATE_DS5: return 11; 880 case IWI_RATE_DS11: return 22; 881 case IWI_RATE_OFDM6: return 12; 882 case IWI_RATE_OFDM9: return 18; 883 case IWI_RATE_OFDM12: return 24; 884 case IWI_RATE_OFDM18: return 36; 885 case IWI_RATE_OFDM24: return 48; 886 case IWI_RATE_OFDM36: return 72; 887 case IWI_RATE_OFDM48: return 96; 888 case IWI_RATE_OFDM54: return 108; 889 } 890 return 0; 891 } 892 893 /* 894 * The firmware automatically adapts the transmit speed. We report its current 895 * value here. 896 */ 897 static void 898 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 899 { 900 struct iwi_softc *sc = ifp->if_softc; 901 struct ieee80211com *ic = &sc->sc_ic; 902 int rate; 903 904 imr->ifm_status = IFM_AVALID; 905 imr->ifm_active = IFM_IEEE80211; 906 if (ic->ic_state == IEEE80211_S_RUN) 907 imr->ifm_status |= IFM_ACTIVE; 908 909 /* read current transmission rate from adapter */ 910 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 911 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 912 913 switch (ic->ic_opmode) { 914 case IEEE80211_M_STA: 915 break; 916 917 case IEEE80211_M_IBSS: 918 imr->ifm_active |= IFM_IEEE80211_ADHOC; 919 break; 920 921 case IEEE80211_M_MONITOR: 922 imr->ifm_active |= IFM_IEEE80211_MONITOR; 923 break; 924 925 case IEEE80211_M_AHDEMO: 926 case IEEE80211_M_HOSTAP: 927 /* should not get there */ 928 break; 929 } 930 } 931 932 static int 933 iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 934 { 935 struct iwi_softc *sc = ic->ic_ifp->if_softc; 936 937 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 938 ieee80211_state_name[ic->ic_state], 939 ieee80211_state_name[nstate], sc->flags)); 940 941 switch (nstate) { 942 case IEEE80211_S_SCAN: 943 if (sc->flags & IWI_FLAG_SCANNING) 944 break; 945 946 ieee80211_node_table_reset(&ic->ic_scan); 947 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 948 sc->flags |= IWI_FLAG_SCANNING; 949 /* blink the led while scanning */ 950 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); 951 iwi_scan(sc); 952 break; 953 954 case IEEE80211_S_AUTH: 955 iwi_auth_and_assoc(sc); 956 break; 957 958 case IEEE80211_S_RUN: 959 if (ic->ic_opmode == IEEE80211_M_IBSS && 960 ic->ic_state == IEEE80211_S_SCAN) 961 iwi_auth_and_assoc(sc); 962 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 963 iwi_set_chan(sc, ic->ic_ibss_chan); 964 break; 965 case IEEE80211_S_ASSOC: 966 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 967 if (ic->ic_state == IEEE80211_S_AUTH) 968 break; 969 iwi_auth_and_assoc(sc); 970 break; 971 972 case IEEE80211_S_INIT: 973 sc->flags &= ~IWI_FLAG_SCANNING; 974 break; 975 } 976 977 return sc->sc_newstate(ic, nstate, arg); 978 } 979 980 /* 981 * WME parameters coming from IEEE 802.11e specification. These values are 982 * already declared in ieee80211_proto.c, but they are static so they can't 983 * be reused here. 984 */ 985 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 986 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ 987 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ 988 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ 989 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ 990 }; 991 992 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 993 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ 994 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ 995 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ 996 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ 997 }; 998 999 static int 1000 iwi_wme_update(struct ieee80211com *ic) 1001 { 1002 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 1003 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 1004 struct iwi_softc *sc = ic->ic_ifp->if_softc; 1005 struct iwi_wme_params wme[3]; 1006 const struct wmeParams *wmep; 1007 int ac; 1008 1009 /* 1010 * We shall not override firmware default WME values if WME is not 1011 * actually enabled. 1012 */ 1013 if (!(ic->ic_flags & IEEE80211_F_WME)) 1014 return 0; 1015 1016 for (ac = 0; ac < WME_NUM_AC; ac++) { 1017 /* set WME values for current operating mode */ 1018 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 1019 wme[0].aifsn[ac] = wmep->wmep_aifsn; 1020 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1021 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1022 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1023 wme[0].acm[ac] = wmep->wmep_acm; 1024 1025 /* set WME values for CCK modulation */ 1026 wmep = &iwi_wme_cck_params[ac]; 1027 wme[1].aifsn[ac] = wmep->wmep_aifsn; 1028 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1029 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1030 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1031 wme[1].acm[ac] = wmep->wmep_acm; 1032 1033 /* set WME values for OFDM modulation */ 1034 wmep = &iwi_wme_ofdm_params[ac]; 1035 wme[2].aifsn[ac] = wmep->wmep_aifsn; 1036 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1037 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1038 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1039 wme[2].acm[ac] = wmep->wmep_acm; 1040 } 1041 1042 DPRINTF(("Setting WME parameters\n")); 1043 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1044 #undef IWI_USEC 1045 #undef IWI_EXP2 1046 } 1047 1048 /* 1049 * Read 16 bits at address 'addr' from the serial EEPROM. 1050 */ 1051 static uint16_t 1052 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1053 { 1054 uint32_t tmp; 1055 uint16_t val; 1056 int n; 1057 1058 /* Clock C once before the first command */ 1059 IWI_EEPROM_CTL(sc, 0); 1060 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1061 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1062 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1063 1064 /* Write start bit (1) */ 1065 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1066 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1067 1068 /* Write READ opcode (10) */ 1069 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1070 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1071 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1072 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1073 1074 /* Write address A7-A0 */ 1075 for (n = 7; n >= 0; n--) { 1076 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1077 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1078 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1079 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1080 } 1081 1082 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1083 1084 /* Read data Q15-Q0 */ 1085 val = 0; 1086 for (n = 15; n >= 0; n--) { 1087 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1088 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1089 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1090 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1091 } 1092 1093 IWI_EEPROM_CTL(sc, 0); 1094 1095 /* Clear Chip Select and clock C */ 1096 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1097 IWI_EEPROM_CTL(sc, 0); 1098 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1099 1100 return val; 1101 } 1102 1103 /* 1104 * XXX: Hack to set the current channel to the value advertised in beacons or 1105 * probe responses. Only used during AP detection. 1106 */ 1107 static void 1108 iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1109 { 1110 struct ieee80211_frame *wh; 1111 uint8_t subtype; 1112 uint8_t *frm, *efrm; 1113 1114 wh = mtod(m, struct ieee80211_frame *); 1115 1116 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1117 return; 1118 1119 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1120 1121 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1122 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1123 return; 1124 1125 frm = (uint8_t *)(wh + 1); 1126 efrm = mtod(m, uint8_t *) + m->m_len; 1127 1128 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1129 while (frm + 2 < efrm) { 1130 if (*frm == IEEE80211_ELEMID_DSPARMS) { 1131 #if IEEE80211_CHAN_MAX < 255 1132 if (frm[2] <= IEEE80211_CHAN_MAX) 1133 #endif 1134 ic->ic_curchan = &ic->ic_channels[frm[2]]; 1135 } 1136 1137 frm += frm[1] + 2; 1138 } 1139 } 1140 1141 static struct mbuf * 1142 iwi_alloc_rx_buf(struct iwi_softc *sc) 1143 { 1144 struct mbuf *m; 1145 1146 MGETHDR(m, M_DONTWAIT, MT_DATA); 1147 if (m == NULL) { 1148 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1149 return NULL; 1150 } 1151 1152 MCLGET(m, M_DONTWAIT); 1153 if (!(m->m_flags & M_EXT)) { 1154 aprint_error_dev(sc->sc_dev, 1155 "could not allocate rx mbuf cluster\n"); 1156 m_freem(m); 1157 return NULL; 1158 } 1159 1160 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1161 return m; 1162 } 1163 1164 static void 1165 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1166 struct iwi_frame *frame) 1167 { 1168 struct ieee80211com *ic = &sc->sc_ic; 1169 struct ifnet *ifp = ic->ic_ifp; 1170 struct mbuf *m, *m_new; 1171 struct ieee80211_frame *wh; 1172 struct ieee80211_node *ni; 1173 int error, s; 1174 1175 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1176 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1177 1178 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1179 le16toh(frame->len) > MCLBYTES) { 1180 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1181 ifp->if_ierrors++; 1182 return; 1183 } 1184 1185 /* 1186 * Try to allocate a new mbuf for this ring element and 1187 * load it before processing the current mbuf. If the ring 1188 * element cannot be reloaded, drop the received packet 1189 * and reuse the old mbuf. In the unlikely case that 1190 * the old mbuf can't be reloaded either, explicitly panic. 1191 * 1192 * XXX Reorganize buffer by moving elements from the logical 1193 * end of the ring to the front instead of dropping. 1194 */ 1195 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1196 ifp->if_ierrors++; 1197 return; 1198 } 1199 1200 bus_dmamap_unload(sc->sc_dmat, data->map); 1201 1202 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1203 BUS_DMA_READ | BUS_DMA_NOWAIT); 1204 if (error != 0) { 1205 aprint_error_dev(sc->sc_dev, 1206 "could not load rx buf DMA map\n"); 1207 m_freem(m_new); 1208 ifp->if_ierrors++; 1209 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1210 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1211 if (error) 1212 panic("%s: unable to remap rx buf", 1213 device_xname(sc->sc_dev)); 1214 return; 1215 } 1216 1217 /* 1218 * New mbuf successfully loaded, update RX ring and continue 1219 * processing. 1220 */ 1221 m = data->m; 1222 data->m = m_new; 1223 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1224 1225 /* Finalize mbuf */ 1226 m_set_rcvif(m, ifp); 1227 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1228 sizeof (struct iwi_frame) + le16toh(frame->len); 1229 1230 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1231 1232 s = splnet(); 1233 1234 if (ic->ic_state == IEEE80211_S_SCAN) 1235 iwi_fix_channel(ic, m); 1236 1237 if (sc->sc_drvbpf != NULL) { 1238 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1239 1240 tap->wr_flags = 0; 1241 tap->wr_rate = iwi_cvtrate(frame->rate); 1242 tap->wr_chan_freq = 1243 htole16(ic->ic_channels[frame->chan].ic_freq); 1244 tap->wr_chan_flags = 1245 htole16(ic->ic_channels[frame->chan].ic_flags); 1246 tap->wr_antsignal = frame->signal; 1247 tap->wr_antenna = frame->antenna; 1248 1249 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 1250 } 1251 wh = mtod(m, struct ieee80211_frame *); 1252 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1253 1254 /* Send the frame to the upper layer */ 1255 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1256 1257 /* node is no longer needed */ 1258 ieee80211_free_node(ni); 1259 1260 splx(s); 1261 } 1262 1263 static void 1264 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1265 { 1266 struct ieee80211com *ic = &sc->sc_ic; 1267 struct iwi_notif_authentication *auth; 1268 struct iwi_notif_association *assoc; 1269 struct iwi_notif_beacon_state *beacon; 1270 int s; 1271 1272 switch (notif->type) { 1273 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1274 #ifdef IWI_DEBUG 1275 { 1276 struct iwi_notif_scan_channel *chan = 1277 (struct iwi_notif_scan_channel *)(notif + 1); 1278 1279 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1280 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1281 } 1282 #endif 1283 break; 1284 1285 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1286 #ifdef IWI_DEBUG 1287 { 1288 struct iwi_notif_scan_complete *scan = 1289 (struct iwi_notif_scan_complete *)(notif + 1); 1290 1291 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1292 scan->status)); 1293 } 1294 #endif 1295 1296 /* monitor mode uses scan to set the channel ... */ 1297 s = splnet(); 1298 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1299 sc->flags &= ~IWI_FLAG_SCANNING; 1300 ieee80211_end_scan(ic); 1301 } else 1302 iwi_set_chan(sc, ic->ic_ibss_chan); 1303 splx(s); 1304 break; 1305 1306 case IWI_NOTIF_TYPE_AUTHENTICATION: 1307 auth = (struct iwi_notif_authentication *)(notif + 1); 1308 1309 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1310 1311 switch (auth->state) { 1312 case IWI_AUTH_SUCCESS: 1313 s = splnet(); 1314 ieee80211_node_authorize(ic->ic_bss); 1315 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1316 splx(s); 1317 break; 1318 1319 case IWI_AUTH_FAIL: 1320 break; 1321 1322 case IWI_AUTH_SENT_1: 1323 case IWI_AUTH_RECV_2: 1324 case IWI_AUTH_SEQ1_PASS: 1325 break; 1326 1327 case IWI_AUTH_SEQ1_FAIL: 1328 break; 1329 1330 default: 1331 aprint_error_dev(sc->sc_dev, 1332 "unknown authentication state %u\n", auth->state); 1333 } 1334 break; 1335 1336 case IWI_NOTIF_TYPE_ASSOCIATION: 1337 assoc = (struct iwi_notif_association *)(notif + 1); 1338 1339 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1340 assoc->status)); 1341 1342 switch (assoc->state) { 1343 case IWI_AUTH_SUCCESS: 1344 /* re-association, do nothing */ 1345 break; 1346 1347 case IWI_ASSOC_SUCCESS: 1348 s = splnet(); 1349 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1350 splx(s); 1351 break; 1352 1353 case IWI_ASSOC_FAIL: 1354 s = splnet(); 1355 ieee80211_begin_scan(ic, 1); 1356 splx(s); 1357 break; 1358 1359 default: 1360 aprint_error_dev(sc->sc_dev, 1361 "unknown association state %u\n", assoc->state); 1362 } 1363 break; 1364 1365 case IWI_NOTIF_TYPE_BEACON: 1366 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1367 1368 if (beacon->state == IWI_BEACON_MISS) { 1369 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1370 device_xname(sc->sc_dev), le32toh(beacon->number))); 1371 } 1372 break; 1373 1374 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1375 case IWI_NOTIF_TYPE_LINK_QUALITY: 1376 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1377 case IWI_NOTIF_TYPE_CALIBRATION: 1378 case IWI_NOTIF_TYPE_NOISE: 1379 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1380 break; 1381 1382 default: 1383 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1384 device_xname(sc->sc_dev), notif->type, notif->flags, 1385 le16toh(notif->len))); 1386 } 1387 } 1388 1389 static void 1390 iwi_cmd_intr(struct iwi_softc *sc) 1391 { 1392 1393 (void)CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1394 1395 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1396 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1397 BUS_DMASYNC_POSTWRITE); 1398 1399 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1400 1401 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1402 1403 if (--sc->cmdq.queued > 0) { 1404 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, 1405 (sc->cmdq.next + 1) % sc->cmdq.count); 1406 } 1407 } 1408 1409 static void 1410 iwi_rx_intr(struct iwi_softc *sc) 1411 { 1412 struct iwi_rx_data *data; 1413 struct iwi_hdr *hdr; 1414 uint32_t hw; 1415 1416 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1417 1418 for (; sc->rxq.cur != hw;) { 1419 data = &sc->rxq.data[sc->rxq.cur]; 1420 1421 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1422 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1423 1424 hdr = mtod(data->m, struct iwi_hdr *); 1425 1426 switch (hdr->type) { 1427 case IWI_HDR_TYPE_FRAME: 1428 iwi_frame_intr(sc, data, sc->rxq.cur, 1429 (struct iwi_frame *)(hdr + 1)); 1430 break; 1431 1432 case IWI_HDR_TYPE_NOTIF: 1433 iwi_notification_intr(sc, 1434 (struct iwi_notif *)(hdr + 1)); 1435 break; 1436 1437 default: 1438 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1439 hdr->type); 1440 } 1441 1442 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1443 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1444 1445 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1446 1447 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1448 } 1449 1450 /* Tell the firmware what we have processed */ 1451 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1452 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1453 } 1454 1455 static void 1456 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1457 { 1458 struct ifnet *ifp = &sc->sc_if; 1459 struct iwi_tx_data *data; 1460 uint32_t hw; 1461 int s; 1462 1463 s = splnet(); 1464 1465 hw = CSR_READ_4(sc, txq->csr_ridx); 1466 1467 for (; txq->next != hw;) { 1468 data = &txq->data[txq->next]; 1469 1470 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1471 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1472 bus_dmamap_unload(sc->sc_dmat, data->map); 1473 m_freem(data->m); 1474 data->m = NULL; 1475 ieee80211_free_node(data->ni); 1476 data->ni = NULL; 1477 1478 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1479 1480 ifp->if_opackets++; 1481 1482 txq->queued--; 1483 txq->next = (txq->next + 1) % txq->count; 1484 } 1485 1486 sc->sc_tx_timer = 0; 1487 1488 if (txq->queued < txq->count - 8 - 8 && (ifp->if_flags & IFF_OACTIVE)) { 1489 ifp->if_flags &= ~IFF_OACTIVE; 1490 1491 /* Call start() since some buffer descriptors have been released */ 1492 iwi_start(ifp); /* in softint */ 1493 } 1494 1495 splx(s); 1496 } 1497 1498 static int 1499 iwi_intr(void *arg) 1500 { 1501 struct iwi_softc *sc = arg; 1502 uint32_t r; 1503 1504 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1505 return 0; 1506 1507 /* Disable interrupts */ 1508 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1509 1510 softint_schedule(sc->sc_soft_ih); 1511 return 1; 1512 } 1513 1514 static void 1515 iwi_softintr(void *arg) 1516 { 1517 struct iwi_softc *sc = arg; 1518 uint32_t r; 1519 int s; 1520 1521 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1522 goto out; 1523 1524 /* Acknowledge interrupts */ 1525 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1526 1527 if (r & IWI_INTR_FATAL_ERROR) { 1528 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1529 s = splnet(); 1530 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1531 iwi_stop(&sc->sc_if, 1); 1532 splx(s); 1533 return; 1534 } 1535 1536 if (r & IWI_INTR_FW_INITED) { 1537 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1538 wakeup(sc); 1539 } 1540 1541 if (r & IWI_INTR_RADIO_OFF) { 1542 DPRINTF(("radio transmitter off\n")); 1543 s = splnet(); 1544 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1545 iwi_stop(&sc->sc_if, 1); 1546 splx(s); 1547 return; 1548 } 1549 1550 if (r & IWI_INTR_CMD_DONE) 1551 iwi_cmd_intr(sc); 1552 1553 if (r & IWI_INTR_TX1_DONE) 1554 iwi_tx_intr(sc, &sc->txq[0]); 1555 1556 if (r & IWI_INTR_TX2_DONE) 1557 iwi_tx_intr(sc, &sc->txq[1]); 1558 1559 if (r & IWI_INTR_TX3_DONE) 1560 iwi_tx_intr(sc, &sc->txq[2]); 1561 1562 if (r & IWI_INTR_TX4_DONE) 1563 iwi_tx_intr(sc, &sc->txq[3]); 1564 1565 if (r & IWI_INTR_RX_DONE) 1566 iwi_rx_intr(sc); 1567 1568 if (r & IWI_INTR_PARITY_ERROR) 1569 aprint_error_dev(sc->sc_dev, "parity error\n"); 1570 1571 out: 1572 /* Re-enable interrupts */ 1573 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 1574 } 1575 1576 static int 1577 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1578 int async) 1579 { 1580 struct iwi_cmd_desc *desc; 1581 1582 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1583 1584 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1585 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1586 desc->type = type; 1587 desc->len = len; 1588 memcpy(desc->data, data, len); 1589 1590 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1591 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1592 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1593 1594 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1595 sc->cmdq.cur, type, len, async)); 1596 1597 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1598 1599 if (++sc->cmdq.queued == 1) 1600 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1601 1602 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1603 } 1604 1605 static void 1606 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1607 { 1608 struct iwi_ibssnode node; 1609 1610 /* write node information into NIC memory */ 1611 memset(&node, 0, sizeof node); 1612 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1613 1614 CSR_WRITE_REGION_1(sc, 1615 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1616 (uint8_t *)&node, sizeof node); 1617 } 1618 1619 static int 1620 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1621 int ac) 1622 { 1623 struct iwi_softc *sc = ifp->if_softc; 1624 struct ieee80211com *ic = &sc->sc_ic; 1625 struct iwi_node *in = (struct iwi_node *)ni; 1626 struct ieee80211_frame *wh; 1627 struct ieee80211_key *k; 1628 const struct chanAccParams *cap; 1629 struct iwi_tx_ring *txq = &sc->txq[ac]; 1630 struct iwi_tx_data *data; 1631 struct iwi_tx_desc *desc; 1632 struct mbuf *mnew; 1633 int error, hdrlen, i, noack = 0; 1634 1635 wh = mtod(m0, struct ieee80211_frame *); 1636 1637 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1638 hdrlen = sizeof (struct ieee80211_qosframe); 1639 cap = &ic->ic_wme.wme_chanParams; 1640 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1641 } else 1642 hdrlen = sizeof (struct ieee80211_frame); 1643 1644 /* 1645 * This is only used in IBSS mode where the firmware expect an index 1646 * in a h/w table instead of a destination address. 1647 */ 1648 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1649 in->in_station = iwi_alloc_unr(sc); 1650 1651 if (in->in_station == -1) { /* h/w table is full */ 1652 m_freem(m0); 1653 ieee80211_free_node(ni); 1654 ifp->if_oerrors++; 1655 return 0; 1656 } 1657 iwi_write_ibssnode(sc, in); 1658 } 1659 1660 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1661 k = ieee80211_crypto_encap(ic, ni, m0); 1662 if (k == NULL) { 1663 m_freem(m0); 1664 return ENOBUFS; 1665 } 1666 1667 /* packet header may have moved, reset our local pointer */ 1668 wh = mtod(m0, struct ieee80211_frame *); 1669 } 1670 1671 if (sc->sc_drvbpf != NULL) { 1672 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1673 1674 tap->wt_flags = 0; 1675 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1676 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1677 1678 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1679 } 1680 1681 data = &txq->data[txq->cur]; 1682 desc = &txq->desc[txq->cur]; 1683 1684 /* save and trim IEEE802.11 header */ 1685 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1686 m_adj(m0, hdrlen); 1687 1688 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1689 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1690 if (error != 0 && error != EFBIG) { 1691 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1692 error); 1693 m_freem(m0); 1694 return error; 1695 } 1696 if (error != 0) { 1697 /* too many fragments, linearize */ 1698 1699 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1700 if (mnew == NULL) { 1701 m_freem(m0); 1702 return ENOMEM; 1703 } 1704 1705 M_COPY_PKTHDR(mnew, m0); 1706 1707 /* If the data won't fit in the header, get a cluster */ 1708 if (m0->m_pkthdr.len > MHLEN) { 1709 MCLGET(mnew, M_DONTWAIT); 1710 if (!(mnew->m_flags & M_EXT)) { 1711 m_freem(m0); 1712 m_freem(mnew); 1713 return ENOMEM; 1714 } 1715 } 1716 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1717 m_freem(m0); 1718 mnew->m_len = mnew->m_pkthdr.len; 1719 m0 = mnew; 1720 1721 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1722 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1723 if (error != 0) { 1724 aprint_error_dev(sc->sc_dev, 1725 "could not map mbuf (error %d)\n", error); 1726 m_freem(m0); 1727 return error; 1728 } 1729 } 1730 1731 data->m = m0; 1732 data->ni = ni; 1733 1734 desc->hdr.type = IWI_HDR_TYPE_DATA; 1735 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1736 desc->station = 1737 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1738 desc->cmd = IWI_DATA_CMD_TX; 1739 desc->len = htole16(m0->m_pkthdr.len); 1740 desc->flags = 0; 1741 desc->xflags = 0; 1742 1743 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1744 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1745 1746 #if 0 1747 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1748 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1749 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1750 } else 1751 #endif 1752 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1753 1754 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1755 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1756 1757 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1758 desc->xflags |= IWI_DATA_XFLAG_QOS; 1759 1760 if (ic->ic_curmode == IEEE80211_MODE_11B) 1761 desc->xflags |= IWI_DATA_XFLAG_CCK; 1762 1763 desc->nseg = htole32(data->map->dm_nsegs); 1764 for (i = 0; i < data->map->dm_nsegs; i++) { 1765 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1766 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1767 } 1768 1769 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1770 txq->cur * IWI_TX_DESC_SIZE, 1771 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1772 1773 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1774 BUS_DMASYNC_PREWRITE); 1775 1776 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1777 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1778 1779 /* Inform firmware about this new packet */ 1780 txq->queued++; 1781 txq->cur = (txq->cur + 1) % txq->count; 1782 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1783 1784 return 0; 1785 } 1786 1787 static void 1788 iwi_start(struct ifnet *ifp) 1789 { 1790 struct iwi_softc *sc = ifp->if_softc; 1791 struct ieee80211com *ic = &sc->sc_ic; 1792 struct mbuf *m0; 1793 struct ether_header *eh; 1794 struct ieee80211_node *ni; 1795 int ac; 1796 1797 if (ic->ic_state != IEEE80211_S_RUN) 1798 return; 1799 1800 for (;;) { 1801 IFQ_DEQUEUE(&ifp->if_snd, m0); 1802 if (m0 == NULL) 1803 break; 1804 1805 if (m0->m_len < sizeof (struct ether_header) && 1806 (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) { 1807 ifp->if_oerrors++; 1808 continue; 1809 } 1810 1811 eh = mtod(m0, struct ether_header *); 1812 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1813 if (ni == NULL) { 1814 m_freem(m0); 1815 ifp->if_oerrors++; 1816 continue; 1817 } 1818 1819 /* classify mbuf so we can find which tx ring to use */ 1820 if (ieee80211_classify(ic, m0, ni) != 0) { 1821 m_freem(m0); 1822 ieee80211_free_node(ni); 1823 ifp->if_oerrors++; 1824 continue; 1825 } 1826 1827 /* no QoS encapsulation for EAPOL frames */ 1828 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1829 M_WME_GETAC(m0) : WME_AC_BE; 1830 1831 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1832 /* there is no place left in this ring */ 1833 IFQ_LOCK(&ifp->if_snd); 1834 IF_PREPEND(&ifp->if_snd, m0); 1835 IFQ_UNLOCK(&ifp->if_snd); 1836 ifp->if_flags |= IFF_OACTIVE; 1837 break; 1838 } 1839 1840 bpf_mtap(ifp, m0); 1841 1842 m0 = ieee80211_encap(ic, m0, ni); 1843 if (m0 == NULL) { 1844 ieee80211_free_node(ni); 1845 ifp->if_oerrors++; 1846 continue; 1847 } 1848 1849 bpf_mtap3(ic->ic_rawbpf, m0); 1850 1851 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1852 ieee80211_free_node(ni); 1853 ifp->if_oerrors++; 1854 break; 1855 } 1856 1857 /* start watchdog timer */ 1858 sc->sc_tx_timer = 5; 1859 ifp->if_timer = 1; 1860 } 1861 } 1862 1863 static void 1864 iwi_watchdog(struct ifnet *ifp) 1865 { 1866 struct iwi_softc *sc = ifp->if_softc; 1867 1868 ifp->if_timer = 0; 1869 1870 if (sc->sc_tx_timer > 0) { 1871 if (--sc->sc_tx_timer == 0) { 1872 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1873 ifp->if_oerrors++; 1874 ifp->if_flags &= ~IFF_UP; 1875 iwi_stop(ifp, 1); 1876 return; 1877 } 1878 ifp->if_timer = 1; 1879 } 1880 1881 ieee80211_watchdog(&sc->sc_ic); 1882 } 1883 1884 static int 1885 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1886 { 1887 uint32_t size, buf[128]; 1888 1889 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1890 memset(buf, 0, sizeof buf); 1891 return copyout(buf, tbl, sizeof buf); 1892 } 1893 1894 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1895 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1896 1897 return copyout(buf, tbl, sizeof buf); 1898 } 1899 1900 static int 1901 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1902 { 1903 #define IS_RUNNING(ifp) \ 1904 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1905 1906 struct iwi_softc *sc = ifp->if_softc; 1907 struct ieee80211com *ic = &sc->sc_ic; 1908 struct ifreq *ifr = (struct ifreq *)data; 1909 int s, error = 0; 1910 int val; 1911 1912 s = splnet(); 1913 1914 switch (cmd) { 1915 case SIOCSIFFLAGS: 1916 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1917 break; 1918 if (ifp->if_flags & IFF_UP) { 1919 if (!(ifp->if_flags & IFF_RUNNING)) 1920 iwi_init(ifp); 1921 } else { 1922 if (ifp->if_flags & IFF_RUNNING) 1923 iwi_stop(ifp, 1); 1924 } 1925 break; 1926 1927 case SIOCADDMULTI: 1928 case SIOCDELMULTI: 1929 /* XXX no h/w multicast filter? --dyoung */ 1930 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1931 /* setup multicast filter, etc */ 1932 error = 0; 1933 } 1934 break; 1935 1936 case SIOCGTABLE0: 1937 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1938 break; 1939 1940 case SIOCGRADIO: 1941 val = !iwi_getrfkill(sc); 1942 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1943 break; 1944 1945 case SIOCSIFMEDIA: 1946 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1947 sc->sc_fwname = "ipw2200-ibss.fw"; 1948 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1949 sc->sc_fwname = "ipw2200-sniffer.fw"; 1950 } else { 1951 sc->sc_fwname = "ipw2200-bss.fw"; 1952 } 1953 error = iwi_cache_firmware(sc); 1954 if (error) 1955 break; 1956 /* FALLTRHOUGH */ 1957 1958 default: 1959 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1960 1961 if (error == ENETRESET) { 1962 if (IS_RUNNING(ifp) && 1963 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1964 iwi_init(ifp); 1965 error = 0; 1966 } 1967 } 1968 1969 splx(s); 1970 return error; 1971 #undef IS_RUNNING 1972 } 1973 1974 static void 1975 iwi_stop_master(struct iwi_softc *sc) 1976 { 1977 int ntries; 1978 1979 /* Disable interrupts */ 1980 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1981 1982 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1983 for (ntries = 0; ntries < 5; ntries++) { 1984 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1985 break; 1986 DELAY(10); 1987 } 1988 if (ntries == 5) 1989 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1990 1991 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1992 IWI_RST_PRINCETON_RESET); 1993 1994 sc->flags &= ~IWI_FLAG_FW_INITED; 1995 } 1996 1997 static int 1998 iwi_reset(struct iwi_softc *sc) 1999 { 2000 int i, ntries; 2001 2002 iwi_stop_master(sc); 2003 2004 /* Move adapter to D0 state */ 2005 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2006 IWI_CTL_INIT); 2007 2008 /* Initialize Phase-Locked Level (PLL) */ 2009 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 2010 2011 /* Wait for clock stabilization */ 2012 for (ntries = 0; ntries < 1000; ntries++) { 2013 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 2014 break; 2015 DELAY(200); 2016 } 2017 if (ntries == 1000) { 2018 aprint_error_dev(sc->sc_dev, 2019 "timeout waiting for clock stabilization\n"); 2020 return ETIMEDOUT; 2021 } 2022 2023 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2024 IWI_RST_SW_RESET); 2025 2026 DELAY(10); 2027 2028 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2029 IWI_CTL_INIT); 2030 2031 /* Clear NIC memory */ 2032 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 2033 for (i = 0; i < 0xc000; i++) 2034 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2035 2036 return 0; 2037 } 2038 2039 static int 2040 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 2041 { 2042 uint16_t *w; 2043 int ntries, i; 2044 2045 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2046 IWI_RST_STOP_MASTER); 2047 for (ntries = 0; ntries < 5; ntries++) { 2048 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2049 break; 2050 DELAY(10); 2051 } 2052 if (ntries == 5) { 2053 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 2054 return ETIMEDOUT; 2055 } 2056 2057 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 2058 DELAY(5000); 2059 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2060 ~IWI_RST_PRINCETON_RESET); 2061 DELAY(5000); 2062 MEM_WRITE_4(sc, 0x3000e0, 0); 2063 DELAY(1000); 2064 MEM_WRITE_4(sc, 0x300004, 1); 2065 DELAY(1000); 2066 MEM_WRITE_4(sc, 0x300004, 0); 2067 DELAY(1000); 2068 MEM_WRITE_1(sc, 0x200000, 0x00); 2069 MEM_WRITE_1(sc, 0x200000, 0x40); 2070 DELAY(1000); 2071 2072 /* Adapter is buggy, we must set the address for each word */ 2073 for (w = uc; size > 0; w++, size -= 2) 2074 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 2075 2076 MEM_WRITE_1(sc, 0x200000, 0x00); 2077 MEM_WRITE_1(sc, 0x200000, 0x80); 2078 2079 /* Wait until we get a response in the uc queue */ 2080 for (ntries = 0; ntries < 100; ntries++) { 2081 if (MEM_READ_1(sc, 0x200000) & 1) 2082 break; 2083 DELAY(100); 2084 } 2085 if (ntries == 100) { 2086 aprint_error_dev(sc->sc_dev, 2087 "timeout waiting for ucode to initialize\n"); 2088 return ETIMEDOUT; 2089 } 2090 2091 /* Empty the uc queue or the firmware will not initialize properly */ 2092 for (i = 0; i < 7; i++) 2093 MEM_READ_4(sc, 0x200004); 2094 2095 MEM_WRITE_1(sc, 0x200000, 0x00); 2096 2097 return 0; 2098 } 2099 2100 /* macro to handle unaligned little endian data in firmware image */ 2101 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2102 static int 2103 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2104 { 2105 bus_dmamap_t map; 2106 u_char *p, *end; 2107 uint32_t sentinel, ctl, sum; 2108 uint32_t cs, sl, cd, cl; 2109 int ntries, nsegs, error; 2110 int sn; 2111 2112 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; 2113 2114 /* Create a DMA map for the firmware image */ 2115 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2116 BUS_DMA_NOWAIT, &map); 2117 if (error != 0) { 2118 aprint_error_dev(sc->sc_dev, 2119 "could not create firmware DMA map\n"); 2120 map = NULL; 2121 goto fail1; 2122 } 2123 2124 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2125 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2126 if (error != 0) { 2127 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2128 error); 2129 goto fail2; 2130 } 2131 2132 /* Make sure the adapter will get up-to-date values */ 2133 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2134 2135 /* Tell the adapter where the command blocks are stored */ 2136 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2137 2138 /* 2139 * Store command blocks into adapter's internal memory using register 2140 * indirections. The adapter will read the firmware image through DMA 2141 * using information stored in command blocks. 2142 */ 2143 p = fw; 2144 end = p + size; 2145 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2146 2147 sn = 0; 2148 sl = cl = 0; 2149 cs = cd = 0; 2150 while (p < end) { 2151 if (sl == 0) { 2152 cs = map->dm_segs[sn].ds_addr; 2153 sl = map->dm_segs[sn].ds_len; 2154 sn++; 2155 } 2156 if (cl == 0) { 2157 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2158 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2159 } 2160 while (sl > 0 && cl > 0) { 2161 int len = min(cl, sl); 2162 2163 sl -= len; 2164 cl -= len; 2165 p += len; 2166 2167 while (len > 0) { 2168 int mlen = min(len, IWI_CB_MAXDATALEN); 2169 2170 ctl = IWI_CB_DEFAULT_CTL | mlen; 2171 sum = ctl ^ cs ^ cd; 2172 2173 /* Write a command block */ 2174 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2175 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2176 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2177 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2178 2179 cs += mlen; 2180 cd += mlen; 2181 len -= mlen; 2182 } 2183 } 2184 } 2185 2186 /* Write a fictive final command block (sentinel) */ 2187 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2188 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2189 2190 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2191 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2192 2193 /* Tell the adapter to start processing command blocks */ 2194 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2195 2196 /* Wait until the adapter has processed all command blocks */ 2197 for (ntries = 0; ntries < 400; ntries++) { 2198 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2199 break; 2200 DELAY(100); 2201 } 2202 if (ntries == 400) { 2203 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2204 error = ETIMEDOUT; 2205 goto fail3; 2206 } 2207 2208 /* We're done with command blocks processing */ 2209 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2210 2211 /* Allow interrupts so we know when the firmware is inited */ 2212 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2213 2214 /* Tell the adapter to initialize the firmware */ 2215 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2216 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2217 IWI_CTL_ALLOW_STANDBY); 2218 2219 /* Wait at most one second for firmware initialization to complete */ 2220 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2221 aprint_error_dev(sc->sc_dev, 2222 "timeout waiting for firmware initialization to complete\n"); 2223 goto fail3; 2224 } 2225 2226 fail3: 2227 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2228 bus_dmamap_unload(sc->sc_dmat, map); 2229 fail2: 2230 if (map != NULL) 2231 bus_dmamap_destroy(sc->sc_dmat, map); 2232 2233 fail1: 2234 return error; 2235 } 2236 2237 /* 2238 * Store firmware into kernel memory so we can download it when we need to, 2239 * e.g when the adapter wakes up from suspend mode. 2240 */ 2241 static int 2242 iwi_cache_firmware(struct iwi_softc *sc) 2243 { 2244 struct iwi_firmware *kfw = &sc->fw; 2245 firmware_handle_t fwh; 2246 struct iwi_firmware_hdr *hdr; 2247 off_t size; 2248 char *fw; 2249 int error; 2250 2251 if (iwi_accept_eula == 0) { 2252 aprint_error_dev(sc->sc_dev, 2253 "EULA not accepted; please see the iwi(4) man page.\n"); 2254 return EPERM; 2255 } 2256 2257 iwi_free_firmware(sc); 2258 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2259 if (error != 0) { 2260 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2261 goto fail1; 2262 } 2263 2264 size = firmware_get_size(fwh); 2265 if (size < sizeof(struct iwi_firmware_hdr)) { 2266 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2267 sc->sc_fwname); 2268 error = EIO; 2269 goto fail1; 2270 } 2271 sc->sc_blobsize = size; 2272 2273 sc->sc_blob = firmware_malloc(size); 2274 if (sc->sc_blob == NULL) { 2275 error = ENOMEM; 2276 firmware_close(fwh); 2277 goto fail1; 2278 } 2279 2280 error = firmware_read(fwh, 0, sc->sc_blob, size); 2281 firmware_close(fwh); 2282 if (error != 0) 2283 goto fail2; 2284 2285 hdr = (struct iwi_firmware_hdr *)sc->sc_blob; 2286 hdr->version = le32toh(hdr->version); 2287 hdr->bsize = le32toh(hdr->bsize); 2288 hdr->usize = le32toh(hdr->usize); 2289 hdr->fsize = le32toh(hdr->fsize); 2290 2291 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2292 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2293 sc->sc_fwname); 2294 error = EIO; 2295 goto fail2; 2296 } 2297 2298 DPRINTF(("firmware version = %d\n", hdr->version)); 2299 if ((IWI_FW_GET_MAJOR(hdr->version) != IWI_FW_REQ_MAJOR) || 2300 (IWI_FW_GET_MINOR(hdr->version) != IWI_FW_REQ_MINOR)) { 2301 aprint_error_dev(sc->sc_dev, 2302 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2303 IWI_FW_GET_MAJOR(hdr->version), 2304 IWI_FW_GET_MINOR(hdr->version), 2305 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2306 error = EIO; 2307 goto fail2; 2308 } 2309 2310 kfw->boot_size = hdr->bsize; 2311 kfw->ucode_size = hdr->usize; 2312 kfw->main_size = hdr->fsize; 2313 2314 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2315 kfw->boot = fw; 2316 fw += kfw->boot_size; 2317 kfw->ucode = fw; 2318 fw += kfw->ucode_size; 2319 kfw->main = fw; 2320 2321 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2322 kfw->boot, kfw->ucode, kfw->main)); 2323 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2324 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2325 2326 sc->flags |= IWI_FLAG_FW_CACHED; 2327 2328 return 0; 2329 2330 2331 fail2: firmware_free(sc->sc_blob, sc->sc_blobsize); 2332 fail1: 2333 return error; 2334 } 2335 2336 static void 2337 iwi_free_firmware(struct iwi_softc *sc) 2338 { 2339 2340 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2341 return; 2342 2343 firmware_free(sc->sc_blob, sc->sc_blobsize); 2344 2345 sc->flags &= ~IWI_FLAG_FW_CACHED; 2346 } 2347 2348 static int 2349 iwi_config(struct iwi_softc *sc) 2350 { 2351 struct ieee80211com *ic = &sc->sc_ic; 2352 struct ifnet *ifp = &sc->sc_if; 2353 struct iwi_configuration config; 2354 struct iwi_rateset rs; 2355 struct iwi_txpower power; 2356 struct ieee80211_key *wk; 2357 struct iwi_wep_key wepkey; 2358 uint32_t data; 2359 int error, nchan, i; 2360 2361 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2362 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2363 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2364 IEEE80211_ADDR_LEN, 0); 2365 if (error != 0) 2366 return error; 2367 2368 memset(&config, 0, sizeof config); 2369 config.bluetooth_coexistence = sc->bluetooth; 2370 config.antenna = sc->antenna; 2371 config.silence_threshold = 0x1e; 2372 config.multicast_enabled = 1; 2373 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2374 config.disable_unicast_decryption = 1; 2375 config.disable_multicast_decryption = 1; 2376 DPRINTF(("Configuring adapter\n")); 2377 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2378 0); 2379 if (error != 0) 2380 return error; 2381 2382 data = htole32(IWI_POWER_MODE_CAM); 2383 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2384 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2385 if (error != 0) 2386 return error; 2387 2388 data = htole32(ic->ic_rtsthreshold); 2389 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2390 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2391 if (error != 0) 2392 return error; 2393 2394 data = htole32(ic->ic_fragthreshold); 2395 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2396 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2397 if (error != 0) 2398 return error; 2399 2400 /* 2401 * Set default Tx power for 802.11b/g and 802.11a channels. 2402 */ 2403 nchan = 0; 2404 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2405 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2406 continue; 2407 power.chan[nchan].chan = i; 2408 power.chan[nchan].power = IWI_TXPOWER_MAX; 2409 nchan++; 2410 } 2411 power.nchan = nchan; 2412 2413 power.mode = IWI_MODE_11G; 2414 DPRINTF(("Setting .11g channels tx power\n")); 2415 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2416 if (error != 0) 2417 return error; 2418 2419 power.mode = IWI_MODE_11B; 2420 DPRINTF(("Setting .11b channels tx power\n")); 2421 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2422 if (error != 0) 2423 return error; 2424 2425 nchan = 0; 2426 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2427 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2428 continue; 2429 power.chan[nchan].chan = i; 2430 power.chan[nchan].power = IWI_TXPOWER_MAX; 2431 nchan++; 2432 } 2433 power.nchan = nchan; 2434 2435 if (nchan > 0) { /* 2915ABG only */ 2436 power.mode = IWI_MODE_11A; 2437 DPRINTF(("Setting .11a channels tx power\n")); 2438 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2439 0); 2440 if (error != 0) 2441 return error; 2442 } 2443 2444 rs.mode = IWI_MODE_11G; 2445 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2446 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2447 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2448 rs.nrates); 2449 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2450 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2451 if (error != 0) 2452 return error; 2453 2454 rs.mode = IWI_MODE_11A; 2455 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2456 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2457 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2458 rs.nrates); 2459 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2460 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2461 if (error != 0) 2462 return error; 2463 2464 /* if we have a desired ESSID, set it now */ 2465 if (ic->ic_des_esslen != 0) { 2466 #ifdef IWI_DEBUG 2467 if (iwi_debug > 0) { 2468 printf("Setting desired ESSID to "); 2469 ieee80211_print_essid(ic->ic_des_essid, 2470 ic->ic_des_esslen); 2471 printf("\n"); 2472 } 2473 #endif 2474 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2475 ic->ic_des_esslen, 0); 2476 if (error != 0) 2477 return error; 2478 } 2479 2480 cprng_fast(&data, sizeof(data)); 2481 data = htole32(data); 2482 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2483 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2484 if (error != 0) 2485 return error; 2486 2487 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2488 /* XXX iwi_setwepkeys? */ 2489 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2490 wk = &ic->ic_crypto.cs_nw_keys[i]; 2491 2492 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2493 wepkey.idx = i; 2494 wepkey.len = wk->wk_keylen; 2495 memset(wepkey.key, 0, sizeof wepkey.key); 2496 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2497 DPRINTF(("Setting wep key index %u len %u\n", 2498 wepkey.idx, wepkey.len)); 2499 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2500 sizeof wepkey, 0); 2501 if (error != 0) 2502 return error; 2503 } 2504 } 2505 2506 /* Enable adapter */ 2507 DPRINTF(("Enabling adapter\n")); 2508 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2509 } 2510 2511 static int 2512 iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2513 { 2514 struct ieee80211com *ic = &sc->sc_ic; 2515 struct iwi_scan_v2 scan; 2516 2517 (void)memset(&scan, 0, sizeof scan); 2518 2519 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); 2520 scan.channels[0] = 1 | 2521 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); 2522 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2523 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); 2524 2525 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2526 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2527 } 2528 2529 static int 2530 iwi_scan(struct iwi_softc *sc) 2531 { 2532 struct ieee80211com *ic = &sc->sc_ic; 2533 struct iwi_scan_v2 scan; 2534 uint32_t type; 2535 uint8_t *p; 2536 int i, count, idx; 2537 2538 (void)memset(&scan, 0, sizeof scan); 2539 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = 2540 htole16(sc->dwelltime); 2541 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = 2542 htole16(sc->dwelltime); 2543 2544 /* tell the firmware about the desired essid */ 2545 if (ic->ic_des_esslen) { 2546 int error; 2547 2548 DPRINTF(("%s: Setting adapter desired ESSID to %s\n", 2549 __func__, ic->ic_des_essid)); 2550 2551 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, 2552 ic->ic_des_essid, ic->ic_des_esslen, 1); 2553 if (error) 2554 return error; 2555 2556 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; 2557 } else { 2558 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; 2559 } 2560 2561 p = &scan.channels[0]; 2562 count = idx = 0; 2563 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2564 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2565 isset(ic->ic_chan_active, i)) { 2566 *++p = i; 2567 count++; 2568 idx++; 2569 iwi_scan_type_set(scan, idx, type); 2570 } 2571 } 2572 if (count) { 2573 *(p - count) = IWI_CHAN_5GHZ | count; 2574 p++; 2575 } 2576 2577 count = 0; 2578 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2579 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2580 isset(ic->ic_chan_active, i)) { 2581 *++p = i; 2582 count++; 2583 idx++; 2584 iwi_scan_type_set(scan, idx, type); 2585 } 2586 } 2587 *(p - count) = IWI_CHAN_2GHZ | count; 2588 2589 DPRINTF(("Start scanning\n")); 2590 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2591 } 2592 2593 static int 2594 iwi_auth_and_assoc(struct iwi_softc *sc) 2595 { 2596 struct ieee80211com *ic = &sc->sc_ic; 2597 struct ieee80211_node *ni = ic->ic_bss; 2598 struct ifnet *ifp = &sc->sc_if; 2599 struct ieee80211_wme_info wme; 2600 struct iwi_configuration config; 2601 struct iwi_associate assoc; 2602 struct iwi_rateset rs; 2603 uint16_t capinfo; 2604 uint32_t data; 2605 int error; 2606 2607 memset(&config, 0, sizeof config); 2608 config.bluetooth_coexistence = sc->bluetooth; 2609 config.antenna = sc->antenna; 2610 config.multicast_enabled = 1; 2611 config.silence_threshold = 0x1e; 2612 if (ic->ic_curmode == IEEE80211_MODE_11G) 2613 config.use_protection = 1; 2614 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2615 config.disable_unicast_decryption = 1; 2616 config.disable_multicast_decryption = 1; 2617 2618 DPRINTF(("Configuring adapter\n")); 2619 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, 2620 sizeof config, 1); 2621 if (error != 0) 2622 return error; 2623 2624 #ifdef IWI_DEBUG 2625 if (iwi_debug > 0) { 2626 aprint_debug_dev(sc->sc_dev, "Setting ESSID to "); 2627 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2628 aprint_debug("\n"); 2629 } 2630 #endif 2631 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2632 if (error != 0) 2633 return error; 2634 2635 /* the rate set has already been "negotiated" */ 2636 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2637 IWI_MODE_11G; 2638 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2639 rs.nrates = ni->ni_rates.rs_nrates; 2640 2641 if (rs.nrates > IWI_RATESET_SIZE) { 2642 DPRINTF(("Truncating negotiated rate set from %u\n", 2643 rs.nrates)); 2644 rs.nrates = IWI_RATESET_SIZE; 2645 } 2646 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2647 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2648 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2649 if (error != 0) 2650 return error; 2651 2652 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2653 wme.wme_id = IEEE80211_ELEMID_VENDOR; 2654 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2655 wme.wme_oui[0] = 0x00; 2656 wme.wme_oui[1] = 0x50; 2657 wme.wme_oui[2] = 0xf2; 2658 wme.wme_type = WME_OUI_TYPE; 2659 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2660 wme.wme_version = WME_VERSION; 2661 wme.wme_info = 0; 2662 2663 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2664 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2665 if (error != 0) 2666 return error; 2667 } 2668 2669 if (ic->ic_opt_ie != NULL) { 2670 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2671 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2672 ic->ic_opt_ie_len, 1); 2673 if (error != 0) 2674 return error; 2675 } 2676 data = htole32(ni->ni_rssi); 2677 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2678 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2679 if (error != 0) 2680 return error; 2681 2682 memset(&assoc, 0, sizeof assoc); 2683 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 2684 assoc.mode = IWI_MODE_11A; 2685 else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) 2686 assoc.mode = IWI_MODE_11G; 2687 else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) 2688 assoc.mode = IWI_MODE_11B; 2689 2690 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2691 2692 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2693 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; 2694 2695 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2696 assoc.plen = IWI_ASSOC_SHPREAMBLE; 2697 2698 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2699 assoc.policy |= htole16(IWI_POLICY_WME); 2700 if (ic->ic_flags & IEEE80211_F_WPA) 2701 assoc.policy |= htole16(IWI_POLICY_WPA); 2702 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2703 assoc.type = IWI_HC_IBSS_START; 2704 else 2705 assoc.type = IWI_HC_ASSOC; 2706 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2707 2708 if (ic->ic_opmode == IEEE80211_M_IBSS) 2709 capinfo = IEEE80211_CAPINFO_IBSS; 2710 else 2711 capinfo = IEEE80211_CAPINFO_ESS; 2712 if (ic->ic_flags & IEEE80211_F_PRIVACY) 2713 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2714 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2715 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2716 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2717 if (ic->ic_flags & IEEE80211_F_SHSLOT) 2718 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2719 assoc.capinfo = htole16(capinfo); 2720 2721 assoc.lintval = htole16(ic->ic_lintval); 2722 assoc.intval = htole16(ni->ni_intval); 2723 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2724 if (ic->ic_opmode == IEEE80211_M_IBSS) 2725 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2726 else 2727 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2728 2729 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 2730 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2731 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join", 2732 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), 2733 assoc.chan, le16toh(assoc.policy), assoc.auth, 2734 le16toh(assoc.capinfo), le16toh(assoc.lintval), 2735 le16toh(assoc.intval))); 2736 2737 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2738 } 2739 2740 static int 2741 iwi_init(struct ifnet *ifp) 2742 { 2743 struct iwi_softc *sc = ifp->if_softc; 2744 struct ieee80211com *ic = &sc->sc_ic; 2745 struct iwi_firmware *fw = &sc->fw; 2746 int i, error; 2747 2748 /* exit immediately if firmware has not been ioctl'd */ 2749 if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2750 if ((error = iwi_cache_firmware(sc)) != 0) { 2751 aprint_error_dev(sc->sc_dev, 2752 "could not cache the firmware\n"); 2753 goto fail; 2754 } 2755 } 2756 2757 iwi_stop(ifp, 0); 2758 2759 if ((error = iwi_reset(sc)) != 0) { 2760 aprint_error_dev(sc->sc_dev, "could not reset adapter\n"); 2761 goto fail; 2762 } 2763 2764 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { 2765 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 2766 goto fail; 2767 } 2768 2769 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { 2770 aprint_error_dev(sc->sc_dev, "could not load microcode\n"); 2771 goto fail; 2772 } 2773 2774 iwi_stop_master(sc); 2775 2776 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); 2777 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2778 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2779 2780 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); 2781 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2782 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2783 2784 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); 2785 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2786 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2787 2788 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); 2789 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2790 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2791 2792 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); 2793 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2794 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2795 2796 for (i = 0; i < sc->rxq.count; i++) 2797 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, 2798 sc->rxq.data[i].map->dm_segs[0].ds_addr); 2799 2800 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); 2801 2802 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { 2803 aprint_error_dev(sc->sc_dev, "could not load main firmware\n"); 2804 goto fail; 2805 } 2806 2807 sc->flags |= IWI_FLAG_FW_INITED; 2808 2809 if ((error = iwi_config(sc)) != 0) { 2810 aprint_error_dev(sc->sc_dev, "device configuration failed\n"); 2811 goto fail; 2812 } 2813 2814 ic->ic_state = IEEE80211_S_INIT; 2815 2816 ifp->if_flags &= ~IFF_OACTIVE; 2817 ifp->if_flags |= IFF_RUNNING; 2818 2819 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2820 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2821 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2822 } else 2823 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2824 2825 return 0; 2826 2827 fail: ifp->if_flags &= ~IFF_UP; 2828 iwi_stop(ifp, 0); 2829 2830 return error; 2831 } 2832 2833 2834 /* 2835 * Return whether or not the radio is enabled in hardware 2836 * (i.e. the rfkill switch is "off"). 2837 */ 2838 static int 2839 iwi_getrfkill(struct iwi_softc *sc) 2840 { 2841 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 2842 } 2843 2844 static int 2845 iwi_sysctl_radio(SYSCTLFN_ARGS) 2846 { 2847 struct sysctlnode node; 2848 struct iwi_softc *sc; 2849 int val, error; 2850 2851 node = *rnode; 2852 sc = (struct iwi_softc *)node.sysctl_data; 2853 2854 val = !iwi_getrfkill(sc); 2855 2856 node.sysctl_data = &val; 2857 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2858 2859 if (error || newp == NULL) 2860 return error; 2861 2862 return 0; 2863 } 2864 2865 #ifdef IWI_DEBUG 2866 SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup") 2867 { 2868 int rc; 2869 const struct sysctlnode *rnode; 2870 const struct sysctlnode *cnode; 2871 2872 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2873 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi", 2874 SYSCTL_DESCR("iwi global controls"), 2875 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2876 goto err; 2877 2878 /* control debugging printfs */ 2879 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2880 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2881 "debug", SYSCTL_DESCR("Enable debugging output"), 2882 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 2883 goto err; 2884 2885 return; 2886 err: 2887 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2888 } 2889 2890 #endif /* IWI_DEBUG */ 2891 2892 /* 2893 * Add sysctl knobs. 2894 */ 2895 static void 2896 iwi_sysctlattach(struct iwi_softc *sc) 2897 { 2898 int rc; 2899 const struct sysctlnode *rnode; 2900 const struct sysctlnode *cnode; 2901 2902 struct sysctllog **clog = &sc->sc_sysctllog; 2903 2904 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2905 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 2906 SYSCTL_DESCR("iwi controls and statistics"), 2907 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2908 goto err; 2909 2910 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2911 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 2912 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 2913 iwi_sysctl_radio, 0, (void *)sc, 0, CTL_CREATE, CTL_EOL)) != 0) 2914 goto err; 2915 2916 sc->dwelltime = 100; 2917 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2918 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2919 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"), 2920 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) 2921 goto err; 2922 2923 sc->bluetooth = 0; 2924 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2925 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2926 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"), 2927 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) 2928 goto err; 2929 2930 sc->antenna = IWI_ANTENNA_AUTO; 2931 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2932 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2933 "antenna", SYSCTL_DESCR("antenna (0=auto)"), 2934 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) 2935 goto err; 2936 2937 return; 2938 err: 2939 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2940 } 2941 2942 static void 2943 iwi_stop(struct ifnet *ifp, int disable) 2944 { 2945 struct iwi_softc *sc = ifp->if_softc; 2946 struct ieee80211com *ic = &sc->sc_ic; 2947 2948 IWI_LED_OFF(sc); 2949 2950 iwi_stop_master(sc); 2951 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); 2952 2953 /* reset rings */ 2954 iwi_reset_cmd_ring(sc, &sc->cmdq); 2955 iwi_reset_tx_ring(sc, &sc->txq[0]); 2956 iwi_reset_tx_ring(sc, &sc->txq[1]); 2957 iwi_reset_tx_ring(sc, &sc->txq[2]); 2958 iwi_reset_tx_ring(sc, &sc->txq[3]); 2959 iwi_reset_rx_ring(sc, &sc->rxq); 2960 2961 ifp->if_timer = 0; 2962 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2963 2964 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2965 } 2966 2967 static void 2968 iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) 2969 { 2970 uint32_t val; 2971 2972 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); 2973 2974 switch (sc->nictype) { 2975 case 1: 2976 /* special NIC type: reversed leds */ 2977 if (state == IWI_LED_ACTIVITY) { 2978 state &= ~IWI_LED_ACTIVITY; 2979 state |= IWI_LED_ASSOCIATED; 2980 } else if (state == IWI_LED_ASSOCIATED) { 2981 state &= ~IWI_LED_ASSOCIATED; 2982 state |= IWI_LED_ACTIVITY; 2983 } 2984 /* and ignore toggle effect */ 2985 val |= state; 2986 break; 2987 case 0: 2988 case 2: 2989 case 3: 2990 case 4: 2991 val = (toggle && (val & state)) ? val & ~state : val | state; 2992 break; 2993 default: 2994 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n", 2995 sc->nictype); 2996 return; 2997 break; 2998 } 2999 3000 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); 3001 3002 return; 3003 } 3004 3005 SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula") 3006 { 3007 const struct sysctlnode *rnode; 3008 const struct sysctlnode *cnode; 3009 3010 sysctl_createv(NULL, 0, NULL, &rnode, 3011 CTLFLAG_PERMANENT, 3012 CTLTYPE_NODE, "iwi", 3013 NULL, 3014 NULL, 0, 3015 NULL, 0, 3016 CTL_HW, CTL_CREATE, CTL_EOL); 3017 3018 sysctl_createv(NULL, 0, &rnode, &cnode, 3019 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 3020 CTLTYPE_INT, "accept_eula", 3021 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"), 3022 NULL, 0, 3023 &iwi_accept_eula, sizeof(iwi_accept_eula), 3024 CTL_CREATE, CTL_EOL); 3025 } 3026